<?php 
function unit($unit){
switch ($unit){
	case "0": return "ลิตร";
	;
	break;
	case "1": return "ตัน";
	;
	break;
	case "2": return "ถัง";
	;
	break;
	case "3": return "แกรรอน";
	;
	break;
	case "4": return "คัน";
	;
	break;
	}
	} 
?>
